baber/WOPTO huggingface dataset:
Patent GB-1433441-A (GB)
Title: Safety device for a tank circuit or expansion vessel
IPC: F01P11/02
Filed: 1974-03-07
Abstract: 1433441 Valves P JOURNEE 7 March 1974 1974 [14 March 1973] 10290/74 Heading F2V A combined vacuum and pressure relief valve for a tank, circuit or expansion vessel 9 has a body 1 which seals at 10 on the vessel and is formed with a passage 14 so that when the body 1 is unscrewed from the vessel 9 the pressure therein is vented via passage 14 before the body is finally removed. A cap 2 is bayonet connected at 12 to the body and on removal is moved axially so that the projection 16 contacts the stem 22 to move valve disc 19 off sea] 21 to depressurize the vessel 9 before the cap can be rotated for final removal. Projection 16 and stem 22 are so formed that if the valve is inverted during assembly the cap cannot be fitted.
Patent GB-473028-A (GB)
Title: Improvements relating to thermionic valve circuits
IPC: H03F1/50
Filed: 1936-04-08
Abstract: 473,028. Valve amplifying circuits. WHITE, E. L. C. April 8, 1936, No. 10300. [Class 40 (v)] A circuit for modifying the phase of signal potentials comprises a valve having an impedance in the cathode lead so that signals appear at the cathode and anode which after modification by a reactive impedance are combined to produce the desired phase modification. Fig. 1 shows a pentode valve with load resistances 4, 7 of 1000 ohms each and a bias resistance 5 of 70 ohms for operation at frequencies of 10-100 kilocycles. A resistance 8 of 10,000 ohms in series with a condenser 9 of À0004 microfarads is connected between the anode and cathode to modify the phase of the output potentials. Fig. 2 shows an arrangement in which condenser 17 provides phase correction and load resistance 16 has substantially twice the value of the resistance 15 in the cathode lead. Outputs of opposite phase are applied to valves 13, 14 whose outputs are combined and taken from terminals 25, 26. Phase correction may be alternatively effected by inductances or by composite impedances instead of by condensers. The reactive impedance may be variable.
Patent GB-1395901-A (GB)
Title: Hydraulic engine starting systems
IPC: F04B9/02
Filed: 1971-04-20
Abstract: 1395901 Hydraulic engine starting; reciprocating pumps and motors JOSEPH LUCAS (INDUSTRIES) Ltd 20 April 1972 [20 April 1971] 10311/71 Headings F1A and F1K An hydraulic engine starting system comprises an accumulator 23 or 24, a pump 28, Fig.3, for charging the accumulator and connected thereto by a non-return valve 80 or 81, a clutch 29 for driving by connecting the pump to motive means when charging of the accumulator is required, an engine starting motor 22 and valve means 26 centralling connection of the engine starting motor 22 to the accumulator so that on actuation of the valve means liquid is discharged from the accumulator into the motor, the clutch being fluid-pressure actuated and being connected to an hydraulic circuit 21 associated with the engine 20 such that hydraulic pressure is normally present in the circuit when the engine is running the clutch being disengaged when the pressure in the circuit is below a predetermined value. During the charging of the accumulators 23, 24 pressurized liquid from the circuit 21 is supplied to the inlet of the motor 22 and pressure is applied to engage the clutch 29 so that the motor 22 can drive the pump 28. A plunger which forms the maximum stroke stop for the motor is urged to a slightly withdrawn position. The speed at which the motor 22 drives the pump 28 is determined by the servo 25 in combination with the restrictor 79. As the accumulators 23, 24 become fully charged the pressure at the outlet of the pump 28 rises to a value such that the force applied by a plunger of the shut-off valve 30 to a spool thereof can overcome the spring-loading of the spool and thereby disconnect the motor inlet from the circuit 21. The motor 22 thus stops rotating. In fact the valve 30 will take up a slightly open position. When it is desired to start the engine 20 the pilot device 27 is operated. Liquid is discharged from one of the accumulators 23 or 24 via the selector valve 26 to the motor and to the servovalve 25 for varying the stroke of the motor. The clutch 29 is disengaged because of the absence of pressure in the hydraulic circuit 21, for charging the accumulator 23, 24. The motor 22 and pump 28 comprise radial pistons engaging eccentric track rings, the motor track rings 36 having opposite eccentricities adjustable by a piston 44 in a cylinder connected to valve 25, a spring-loaded piston 43 biasing the track rings into their maximum stroke positions. When no pressure is available in the hydraulic circuit 21 there is provided an auxiliary pump 32, Fig.13, which is manually operated through an epicyclic gear 105. Pump 32 has radial pistons engaging eccentric track rings 111 which are spring-loaded into their maximum stroke positions and automatically destroke as the pump cylinder pressure rises.
Patent GB-330679-A (GB)
Title: Improvements in the treatment of threads for receiving sound records
IPC: H01B3/00
Filed: 1929-04-03
Abstract: 330,679. Croll, W. F. April 3, 1929. Coating threads and wires. - A thread of cellulose, or copper wire covered with cellulose, is treated with a composition containing water, glycerine, soap, and wax to prepare it for receiving sound impressions. The thread originally is about 15 mil. diameter and is passed several times through the composition and through a die which is changed at each draw for a larger or a smaller one so that the final thread is of about 0.23 or 0.26 mil. diameter. A suitable composition comprises 25 per cent glycerine, 7 per cent soap without free alkali, 3 per cent paraffin wax, and 65 per cent water. The composition may, however, include a mixture of waxes comprising 50 per cent stearin, 40 per cent paraffin, and 10 per cent Chinese wax. The thread a' is drawn from a bobbin a<3> and round grooved rollers b<1>, b<2>, b<3> in a bath b containing the composition and fitted with an interchangeable die plate c, the treated thread passing over guide rolls d, d<1> to a bobbin g which is traversed during winding. After several passages through the bath, the thread is wound on rubber covered drums and stored at normal temperature for 48 hours.
Patent GB-551406-A (GB)
Title: Improvements in or relating to multi-cylinder internal-combustion engines
IPC: F02B75/22
Filed: 1941-08-13
Abstract: 551,406. Two-stroke engines. BOWER, G. S. Aug. 13, 1941, No. 10319. [Class 7 (ii)] A multicylinder two-stroke engine is constituted by two half-engines, in each of which the disposition of the cranks and the order of firing are such that the torque impulses are applied to the crankshaft in simultaneous pairs at points equidistant from the mid point of the crankshaft, and the two crankshafts are geared together in such phase relationship that the major order exciting torque of lowest number has a node or nodes at the coupling gearing. In one form, Figs. 1 and 1a, the crankshafts 10, 11 rotate in the same direction and are connected by torsionally flexible members 14, 15 to gear wheels 12, 13 meshing with a gear 16 on the shaft 17 of an airscrew 18. The two half-engines are similar as regards equivalent moments of inertia and torsional flexibilities of the crankshafts, so that the engine is symmetrical about nodal points n, N in the coupling gear and between the gearing and the airscrew. Each half-engine has two banks of four cylinders, inclined at 90 degrees to each other, and the crankshaft 10 lags behind the crankshaft 11 by a phase angle (45 degrees) which is 360 degrees divided by the number of cylinders (8) in either half-engine. The firing order is given in the Specification. Other arrangements of coupling gearing may be used to drive one or more airscrews, for example, the gearing described in Specification 551,411, [Group XXIV], may be used to drive two airscrews in opposite directions. In modifications, (a) a sixteen-cylinder engine, Fig. 2a, has two opposed banks of four cylinders in each halfengine, the upper crankshaft lagging by 45 degrees behind the lower ; (b) a twenty-fourcylinder engine, Fig. 3a, has in each halfengine two banks of six cylinders inclined at 60 degrees to each other and the upper crankshaft lags by 30 degrees ; (c) a twenty-fourcylinder engine has opposed banks of six cylinders in each half-engine, the upper crankshaft lagging by 30 degrees and the cranks being in symmetrical pairs at 120 degrees to one another, or being at 60 degrees to one another ; (d) a thirty-two-cylinder engine has in each half-engine two banks of eight cylinders inclined at 45 degrees to each other, the upper crankshaft lagging by 22¢ degrees and the cranks being in pairs at 90 degrees to one another ; (e) a thirty-two-cylinder engine has in each half-engine opposed banks of eight cylinders, the upper crankshaft lagging by 22¢ degrees and the cranks being at 45 degrees to one another. In each case the firing order is given and the arrangement of cranks is specified. Specification 545,974 also is referred to.
Patent GB-1133175-A (GB)
Title: Improved method of joining plastics sheet materials or portions of plastics sheet material
IPC: B29C65/00
Filed: 1967-03-04
Abstract: 1,133,175. Sealing bags; bag closures. K. C. DODD. 4 March, 1967, No. 10354/67. Headings B8C and B8K. [Also in Divisions B5 and E1] Plastics sheet material portions, e.g. parts of a filled plastics bag, are joined by forming a loop 19 in each portion at some time prior to the joining operation to protect the surface of the portion to be joined from contamination, e.g. by dirt; immediately before joining, cutting the loop 19 to expose the protective surface of the sheet portion; bringing similar protected surfaces to be joined, together; and forming a joint between the surfaces. In one embodiment, Figs. 7 and 9, a plastics bag 17 is formed from a tubular plastics material by transversely welding and cutting across the tube. Loops 19 are formed on the outside, Fig. 7, or on the inside, Fig. 10 (not shown), of the bag. After the bag has been filled, the loops 19 are deformed, Fig. 8 (not shown), and are then cut at 20, Fig. 9. The loop portions are then extended and the protected surfaces are welded or adhered. In a modification, Fig. 11 (not shown), the loops (19) are formed by inserting a tubular piece of plastics film within the bag mouth and welding the free edges of the tube to the bag mouth.
Patent GB-480770-A (GB)
Title: Improvements in or relating to fermentation processes
IPC: C12P7/28
Filed: 1936-05-23
Abstract: Carbohydrate mashes are fermented for butyl alcohol, acetone and ethyl alcohol by bacteria of a class named clostridium saccharoacetobutylicum-liquefaciens.  The members of the group, four members alpha, beta, gamma and delta being specifically described, are characterized in that they liquefy gelatine, do not produce commercial yields of solvents in plain cereal mashes without added nutrients, and are able to produce optimum yields in mashes of high carbohydrate content, e.g. 65 to 75 grams of sugar per litre, usually in about 40 hours or less.  Cultural and other characterics are detailed.  Inverted or non-inverted sugar mashes, nutrient corn or soluble starch mash are fermented with the production of relatively high solvent yields, corn meal mash without nutrients is fermented, if at all, with a low solvent yield.  The solvent ratio is usually butyl alcohol 55-74 per cent, acetone 24-39 per cent and ethyl alcohol 2-6 per cent. Nitrogenous nutrient is employed in the form of ammonia and/or degraded protein equivalent to 4-6 per cent of ammonium sulphate, and phosphorus containing nutrient equivalent to 0,2-0,6 per cent of calcium acid phosphate.  The acidity of the mash is controlled so that the final pH is from 5,2 to 6,4, as by the continuous or semi-continuous addition of soluble agents such as ammonium hydroxide or the initial addition of an excess of insoluble agent such as calcium carbonate, the fineness of which may be adjusted according to Specifications 463,719 and 463,720 or of salt of a fermentable organic acid as described in Specification 463,718. In preparing a culture of the bacteria samples of soil as from cane fields, rotted wood, vegetable seeds e.g. soy beans are macerated in sterile water, the liquid being used to inoculate a mash consisting of 50 gm. of degerminated corn meal and 20 gm. of dried liver per litre which is pasteurized, cooled and incubated.  The culture is then plated on a medium consisting of 17 gm. agar, 20 gm. glucose, 8 gm. molasses, 5 gm. peptone, 3 gm. beef extract and 1 gm. of ammonium sulphate per litre, having a pH not lower than 6,8.  After anaerobic incubation for 72 hours, colonies are inoculated on to a potato glucose medium, and incubated at 30 DEG  C. for a week or longer to ensure sporulation.  They are then tested in sugar mashes, and the best cultures further purified by additional plating or cultivating single cells.  Specification 437,121 also is referred to.
Patent GB-954118-A (GB)
Title: Improvements in or relating to hinged drop-down doors for domestic appliances
Inventor: GRAY GEOFFREY HUGH
IPC: F24C15/02
Filed: 1962-03-19
Abstract: 954,118. Hinges; door counterbalancing devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 1, 1963 [March 19, 1962], No. 10460/62. Headings E2F and E2M. [Also in Division F4] A domestic cooker has a removable dropdown door with hinge levers pivoted to the door at or near its lower edge, the levers forming part of a latching mechanism engageable by insertion of the levers in the casing of the cooker, the door together with the hinge levers being removable from the cooker by lifting the door in its closed position, which movement disengages the hinge levers. The door casing comprises front and back panels 2 and 3 respectively. Inside this casing two brackets 28 carry a hinge spindle 8 and a spindle 6 on which two quadrant arms 7 are rotatably mounted. Two hinge levers 4 are rotatably mounted on the hinge spindle 8 which is encircled by two torsion coil springs 5 each of which has one end 14 embracing a hinge lever and the other end 15 tensioned against the inner face of back panel 3. The quadrant arms 7 and the hinge levers 4 pass through slots 17 and 13 respectively in panel 3 of the door, and through slots 19 and 20 respectively in the door surround 1. Two brackets 10 are attached to the back panel of the door surround 1 by flanges 11, and each bracket is also provided with flanges 16 and 18 and a lip 26. On fitting the door, the hinge levers 4 pass between flanges 16 and 18 and are retained in this position by projections 23 and 24 and catch 22. The lips 26 serve as stops for catches 27 on the quadrant arms 7 when the door is opened to its horizontal position. To remove the door it is closed to its vertical position and lifted so that the curved portions 25 of the hinge levers 4 roll against the undersides of flanges 16 causing catches 22 to be released. Lifting quadrant arms 7 to avoid the stops 26, the door can then be withdrawn. The springs 5 serve as a counterbalance and return mechanism for the door.
Patent GB-346154-A (GB)
Title: An improvement in cases for the protection of eyeglasses
IPC: A45C11/04
Filed: 1930-04-03
Abstract: 346,154. Spectacle cases. DAVIES, S. R., 9, Frances Road, Erdington, Birming- ham. April 3, 1930, No. 10519. [Class 97 (i).] A spectacle case is made in the form of an openended sheath or scabbard and is provided internally with flat springs along its sides to grip the spectacles and prevent them from falling out when the case is inverted.
Patent GB-726454-A (GB)
Title: Improvements in the production of copolymers
Filed: 1953-04-17
Abstract: Copolymers of a N-vinylimidazole, which may be substituted on the C-atom of the imidazole ring, and an ethylenically unsaturated aliphatic carboxylic acid having 3 or 4 carbon atoms in the molecule are made by polymerizing a mixture of the monomers, or polymerizing the N-vinyl imidazole with a derivative of the carboxylic acid which is capable of being hydrolysed to the acid and hydrolysing the derivative during or after polymerization. The polymerization may be effected in the presence of water and a polymerization catalyst, e.g. hydrogen peroxide and the N-vinylimidazole added portionwise. Specified acids are methacrylic acid, crotonic acid, acrylic acid, or maleic or fumaric acid.  Suitable derivatives are the anhydrides, esters, amides, or nitriles of the specified acids.  The imidazole ring may be substituted by alkyl, aryl, cycloalkyl, or aralkyl radicals which may also be substituted by groups such as hydroxy, carboxylic, amide, ester or nitrile groups.  Specified imidazoles are N-vinyl-2-methylimidazole, N-vinyl-2-methylolimidazole, N-vinyl-2-methylolacetimidazole, N-vinyl-2-phenyl-imidazole, N-vinyl-4-methylimidazole, N-vinyl-benzimidazole, and N-vinyl - benz - 2 - hydroxymethylimidazole.  The sodium salts of the copolymers may be used as protective colloids, thickening agents and dispersing agents, e.g. in the treatment of textiles and leather.  Specification 687,537 is referred to.
Patent GB-1135842-A (GB)
Title: Alkyl -‡-benzyl--‡-phenyl--†-tertiaryaminopropyl ketones, their preparation and reduction, and pharmaceutical compositions containing such products
Inventor: CAVALLA JOHN FREDERICK
IPC: C07D213/50
Filed: 1966-03-10
Abstract: 1,135,842. α - Benzyl - α - phenyl - γ - tertiaryaminopropyl ketones and reduction products. JOHN WYETH & BROTHER Ltd. 8 March, 1967 [10 March, 1966], No. 10550/66. Heading C2C. Novel compounds of general formula wherein Ar and Ar<SP>1</SP> are each, phenyl, naphthyl or phenyl substituted by hydroxy, alkoxy, aralkoxy, alkyl, acyloxy or halogen and R is a radical of formula wherein R<SP>1</SP> and R<SP>2</SP> are alkyl radicals or together complete a ring optionally containing a further hetero atom and R<SP>3</SP> is H or alkyl with the proviso that Ar and Ar<SP>1</SP> each is one of the substituted phenyl radicals specified above when R is a 1-piperidino or diethylamino radical; and acid addition and quaternary ammonium salts thereof are prepared by reacting a nitrile of Formula II with a Grignard reagent or an alkyl lithium with the proviso that if Ar or Ar<SP>1</SP> contain reactive substituents these are blocked prior to the reaction and regenerated later and optionally followed by salt formation. Secondary alcohols are prepared by reduction of the above novel ketones. The nitriles of Formula II above are prepared by reaction of a propionitrile of formula wherein M is an alkali metal with a haloalkylamine of Formula IV Hal.CH 2 .CH 2 .R where Hal is halogen, or when R is pyridyl, with a compound of formula CH 2  = CH-R, optionally with quaternization and/or reduction of the pyridyl group to piperidyl by catalytic hydrogenation. Pharmaceutical compositions having analgesic, anti-inflammatory and/or central nervous system activity and in conventional forms for oral or rectal administration comprise an above novel ketone or a secondary alcohol prepared therefrom as above and a carrier or diluent therefor.
Patent GB-1468721-A (GB)
Title: Static converters and means for reducing harmonic components
IPC: H02M1/12
Filed: 1974-03-08
Abstract: 1468721 Reducing harmonics from converters SIEMENS AG 8 March 1974 [8 March 1973] 10601/74 Heading H2F In a 12-pulse converter, e.g. in an HVDC system, harmonics on the A.C. side are reduced by filters connected to each phase, each phase comprising at least two series LC resonant circuits C1, L1; C2, L2, each having a resistor R1, R2 connected in parallel with the inductor. One filter of each phase is tuned to the 24th harmonic whilst the other has an initial frequency which is below the 5th harmonic and a resonant frequency which is equal to or greater than the 11th harmonic. Initial frequency is derived as that frequency at which the impedance has the same value as at infinite frequency.
Patent GB-627779-A (GB)
Title: Improvements in or relating to heat engine plant
IPC: F01K23/10
Filed: 1947-04-21
Abstract: 627,779. Motor power plant. LEGENDRE, R. G. April 21, 1947, No. 10618. Convention date, April 26, 1946. Drawings to Specification. [Class 110(iii)] A reheater between the stages of a steam engine or turbine utilizes the heat in the exhaust of a gas turbine. The steam engine and the gas turbine are otherwise independent.
Patent GB-667912-A (GB)
Title: Improvements in aircraft
Inventor: CROCOMBE FREDERICK FRANCIS
IPC: B64C3/54
Filed: 1950-05-01
Abstract: 667,912. Aircraft control surfaces. BLACKBURN & GENERAL AIRCRAFT, Ltd. May 1, 1950, No. 10723/50. Drawings to Specification. Class 4. In an aircraft having fixed swept-back wings each wing has a movable tip for lateral control at high speed and a normal trailing edge aileron for lateral control at low speed, which are operated through a mechanism connected to a selecting device under the pilot's control such that the mechanism is conditioned to actuate the appropriate control surface simply by actuation of such device appropriately to the speed of the aircraft. The arrangement of the control transmission and control surfaces described. is similar to that for an aircraft with variable stveep-back wings as described in Specification 667,911, except that the inboard end of the rod 24 is connected by a linkage to a pilot's control member instead of being pivotally connected to the fuselage. The appropriate control surface is brought into operation by actuation of the pilot's control member.
Patent GB-269918-A (GB)
Title: Improvements relating to the manufacture of dyestuffs
IPC: C09B67/42
Filed: 1927-04-22
Abstract: 269,918. I. G. Farbenindustrie Akt.- Ges. April 22, 1926, [Convention date]. Dye preparations; lakes; azo and aniline black dyes.-Insoluble or sparingly-soluble dyestuffs are preserved in a state of fine subdivision by incorporating with them an alkyl cellulose, in an amount not exceeding 10 per cent by weight of the dry dyestuff, the alkyl cellulose being added during or after the manufacture of the dyestuff. In examples, (1) 2: 3-oxynaphthoic anilide is dissolved in caustic soda solution, an aqueous solution of methyl cellulose is added, and the mixture is run into acetic acid and ice water to form a suspension of the aniline which is then coupled with diazotized 4-nitro-2-aminobenzoic acid methyl ester in the usual way; and (2) #- naphthol is coupled with diazotized 3-nitro-4- aminotoluene, and the paste obtained on filtration is mixed with methyl cellulose solution; the products are finely-subdivided red pastes, which maintain their physical properties even when stored for a considerahletime. The method may also be applied to vat dyestuffs or to dyestuffs produced by oxidation, such as aniline black or the like, methyl cellulose being either added during the oxidation or immediately after the formation of the dyestuffs. The pastes may be brought info a dry powdered form or they may be worked up into colour lakes, e.g. with aluminium sulphate for use in printing or with aluminium sulphate and barium chloride for use in making wall-paper; they may also be used without a substratum as printing colours for paper or as body colours for leather, the usual agglutinating or fixing agents being added.
Patent GB-837179-A (GB)
Title: Improvements in garment hangers
Inventor: NEWMAN WILLIAM VICTOR
IPC: A47G25/38
Filed: 1958-04-03
Abstract: 837,179. Coat &c. hangers. SPA BRUSHES Ltd. Nov. 5, 1958 [April 3, 1958], No. 10852/58. Class 52(5) A coat &c. hanger of thermoplastic resin such as polystyrene comprises a bar 1 and a separately moulded, rotatable suspension hook 5 which is threaded through a central hole in the bar, the mouth of the hole being of increased diameter to provide a shoulder 7 against which a projection 9 on the hook abuts and having a lip 8 which is inturned after heating, to locate the hook in position. The hole is provided in a boss 3, a cylindrical part 6 of the hook fitting therein.